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