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