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