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