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