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