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