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