Ah, okay. You still might want to wait a while longer...
What I usually do is when I click the create button, there is still the link to the group at the top. I memorize that, and if you put that in again it will either go back to the "this group is awaiting approval" page, or it will go to "this group does not exist" page.
Well, first of all you need to be sure there isn't already a group that's like yours. If there's not, then make sure it follows all of the rules. Afterwards, you click "add group" on the groups page and create what you want!
It shouldn't take long to be accepted. :3 If it isn't within' a day contact a mod