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