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