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