<?php
    namespace ModuleNameSpaceYourModuleNameSetup;

    use MagentoFrameworkSetupInstallDataInterface;
    use MagentoFrameworkSetupModuleContextInterface;
    use MagentoFrameworkSetupModuleDataSetupInterface;

    /* For get RoleType and UserType for create Role */;
    use MagentoAuthorizationModelAclRoleGroup as RoleGroup;
    use MagentoAuthorizationModelUserContextInterface;
    /** * @codeCoverageIgnore */

    class InstallData implements InstallDataInterface {

    /** * RoleFactory * * @var roleFactory */
    private $roleFactory;

    /** * RulesFactory * * @var rulesFactory */
    private $rulesFactory;

    /** * Init * * @param MagentoAuthorizationModelRoleFactory $roleFactory * @param MagentoAuthorizationModelRulesFactory $rulesFactory */

    public function __construct(
    MagentoAuthorizationModelRoleFactory $roleFactory, /* Instance of Role*/
 MagentoAuthorizationModelRulesFactory $rulesFactory /* Instance of Rule */
/*this define that which resource permitted to wich role */ ) {
    $this->roleFactory = $roleFactory;
    $this->rulesFactory = $rulesFactory;
    }

    /** * {@inheritdoc} * @SuppressWarnings(PHPMD.ExcessiveMethodLength) */

    public function install(
    ModuleDataSetupInterface $setup,
    ModuleContextInterface $context) {
    /** * Create Warehouse role */
   $role=$this->roleFactory->create();
   $role->setName('YourRoleName') //Set Role Name Which you want to create

   ->setPid(0) //set parent role id of your role
   ->setRoleType(RoleGroup::ROLE_TYPE)
   ->setUserType(UserContextInterface::USER_TYPE_ADMIN);

    $role->save();
    /* Now we set that which resources we allow to this role */ $resource=[
        'Magento_Backend::admin',
                    'Magento_Sales::sales'
       ];

    /* Array of resource ids which we want to allow this role*/
    $this->rulesFactory->create()->setRoleId($role->getId())->setResources($resource)->saveRel();
    }
    }