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