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