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