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)(12,16)(13,15)(17,18,21,25)(19,26,29,23)(20,24,31,22)(27,28,32,30)(2,6)(7,8)(9,11,14,10)(12,16,13,15)(17,19,21,29)(18,23,25,26)(20,27,31,32)(22,28,24,30)(1,3,5,4)(2,7,6,8)(10,11)(15,16)(17,20)(18,24)(19,27)(21,31)(22,25)(23,30)(26,28)(29,32)(9,12,14,13)(10,15,11,16)(18,25)(19,28)(22,24)(23,32)(26,27)(29,30)(1,4,5,3)(2,7,6,8)(9,13,14,12)(10,16,11,15)(18,25)(19,29)(20,31)(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.