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