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