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