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