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