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