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