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