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