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