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