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)(11,15)(12,16)(13,14)(17,18,23,21)(19,25,30,32)(20,28,29,24)(22,26,31,27)(2,6)(7,8)(10,14)(11,12)(17,19,23,30)(18,24,21,28)(20,31,29,22)(25,27,32,26)(1,3,5,4)(2,7,6,8)(9,11,13,12)(10,15,14,16)(17,20,23,29)(18,25,21,32)(19,22,30,31)(24,26,28,27)(1,4,5,3)(2,8,6,7)(11,12)(15,16)(17,21,23,18)(19,28,30,24)(20,25,29,32)(22,26,31,27)(9,12,13,11)(10,16,14,15)(17,22,23,31)(18,26,21,27)(19,20,30,29)(24,25,28,32)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.