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