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