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