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