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