I do not believe it is currently possible. There is nothing in a group permission that could be specific to only a subset of domains. You would need to write some modified code to achieve this.
We did a similar thing several years ago, when we created a re-seller platform, we limited access to domains by their description field using a code followed by a colon and then the real description i.e.:
12:Some customer
Then with modified php code we could restrict access to domains using the number before the colon.
We abandoned this method long ago, so I don't have anything to share with you, only the thought process!