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