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