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