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