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