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