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