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