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