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