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