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