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