that's what windows does when you add a computer to a domain.
Builtin 'Domain-Admins' will be added to the local 'Administrators' group
and 'Domain Users' are added to the local users group.
I think you need to look into Restricted Groups GPO in your Group Policy.
With restricted groups you prescribe group membership. For example: you
could prescribe who is member of local Admin group on your workstations,
without doing this manually.