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