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