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