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