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)(11,14)(12,15)(13,21)(16,20)(17,19)(18,22)(23,24) involution — undirected(1,3)(2,5)(4,8)(6,7)(10,14)(15,22)(16,23)(17,21) involution — undirected(10,15)(12,20)(13,19)(14,22)(16,17)(18,24)(21,23) involution — undirected(3,8)(5,7) involution — undirected(2,6)(5,7)(10,14)(15,22)(16,23)(17,21) 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.