One vertex per element, one color per generator, with an edge from x to x·s.
(1,2,5,8)(3,7,4,6)(9,10,14,15)(11,12,13,16)(17,18)(19,25)(20,31)(21,28)(22,27)(23,26)(24,29)(30,32)(1,3,5,4)(2,6,8,7)(9,11,14,13)(10,12,15,16)(17,19)(18,24)(20,21)(22,29)(23,30)(25,27)(26,31)(28,32)(9,12,13,15,14,16,11,10)(17,20,21,19,22,30,23,29)(18,25,26,31,27,24,28,32)(1,4,5,3)(2,7,8,6)(17,21,22,23)(18,26,27,28)(19,20,29,30)(24,31,25,32)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.