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