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