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