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