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