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