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