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