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