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