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