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