One vertex per element, one color per generator, with an edge from x to x·s.
(1,2,5,7)(3,8,4,6)(9,10,14,13)(11,16,12,15)(18,22)(20,24)(23,28)(25,29)(27,31)(30,32)(1,3,5,4)(2,6,7,8)(9,11,14,12)(10,15,13,16)(18,23)(19,26)(22,28)(27,31)(1,4,5,3)(2,6,7,8)(9,10,14,13)(11,16,12,15)(17,18,24,28,21,23,20,22)(19,25,31,32,26,30,27,29)(9,12,14,11)(10,15,13,16)(17,19,21,26)(18,25,23,30)(20,27,24,31)(22,29,28,32)(9,13,14,10)(11,16,12,15)(19,26)(25,30)(27,31)(29,32)A Cayley diagram is a choice, not a fact about the group. Another drawing of this group — in a book, or on a different generating set — may look nothing like this one.