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