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