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