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