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