We've created a printable set of flash cards that you can access using this link:
In order to memorize the generic frameworks I recommend that you review flash cards to test your memory recall. When you review the flashcards, stack them in such a way that the side of the cards facing up is the name of the structure. When you review a particular flashcard, after you see the name of the structure, pull out a sheet of paper and sketch the structure out from memory. Then flip the card over to compare your drawing to the correct answer. This way you practice being able to draw the structure out from memory in the same fashion you would in the interview.