How to move a Unity Camera

using UnityEngine;
using System.Collections;

public class CameraScript : MonoBehaviour {
    Mover mover;
    void Start()
    {
        mover = new Mover(transform);
    }
    void Update () {
        float dX = Input.GetAxis("Horizontal");
        float dZ = Input.GetAxis("Vertical");
        float dY = Input.GetAxis("Mouse ScrollWheel");
        const float speed = 1;
        mover.move(new Vector3(dX, dY, dZ)*speed);
    }

    void OnGUI()
    {
        GUILayout.BeginVertical(GUILayout.Width(300));
        {
            GUILayout.BeginHorizontal(GUILayout.Width(100));
            {
                GUILayout.Space(33+6);
                if(GUILayout.RepeatButton("^", GUILayout.Width(33)))
                {
                    mover.moveUp();
                }
            }
            GUILayout.EndHorizontal();

            GUILayout.BeginHorizontal(GUILayout.Width(100));
            {
                if(GUILayout.RepeatButton("<", GUILayout.Width(33)))
                {
                    mover.moveLeft();
                }
                GUILayout.Space(33);
                if(GUILayout.RepeatButton(">", GUILayout.Width(33)))
                {
                    mover.moveRight();
                }
            }
            GUILayout.EndHorizontal();

            GUILayout.BeginHorizontal(GUILayout.Width(100));
            {
                GUILayout.Space(33+6);
                if(GUILayout.RepeatButton("v", GUILayout.Width(33)))
                {
                    mover.moveDown();
                }
            }
            GUILayout.EndHorizontal();
        }
        GUILayout.EndVertical();
    }

    private class Mover
    {
        Transform transform;
        public Mover(Transform transform)
        {
            this.transform = transform;
        }
        public void moveUp()
        {
            move (Vector3.forward);
        }
        public void moveLeft()
        {
            move (Vector3.left);
        }
        public void moveRight()
        {
            move (Vector3.left*-1f);
        }
        public void moveDown()
        {
            move (Vector3.forward*-1f);
        }
        public void move(Vector3 v3)
        {
            transform.Translate(v3);
            Debug.Log("Delta x: "+v3.x+" | Delta z: "+v3.z+" | Delta y: "+v3.y);
        }
    }
}