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)(12,15)(14,16)(17,18,24,22)(19,29,31,25)(20,27,21,26)(23,28,32,30)(3,8)(5,6)(10,11)(14,15)(17,19,24,31)(18,25,22,29)(20,30,21,28)(23,27,32,26)(1,3)(2,5)(4,8)(6,7)(9,10,13,11)(12,14,16,15)(17,20,24,21)(18,26,22,27)(19,30,31,28)(23,29,32,25)(1,3)(2,6)(4,8)(5,7)(9,11,13,10)(12,15,16,14)(17,21,24,20)(18,27,22,26)(19,30,31,28)(23,29,32,25)(9,12)(10,14)(11,15)(13,16)(17,22,24,18)(19,29,31,25)(20,27,21,26)(23,30,32,28)(1,2)(3,5)(4,7)(6,8)(17,23,24,32)(18,28,22,30)(19,27,31,26)(20,29,21,25)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.