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