One vertex per element, one color per generator, with an edge from x to x·s.
(1,2) involution — undirected(3,4)(5,9)(6,18)(7,21)(8,10)(11,14)(12,15)(13,19)(16,28)(17,22)(20,34)(23,30)(24,29)(25,31)(26,32)(27,33) involution — undirected(4,9)(5,14)(6,15)(7,19)(10,22)(11,12)(13,28)(16,33)(17,31)(18,23)(20,32)(21,24)(25,26)(27,34)(29,30) involution — undirected(4,10)(9,22)(11,25)(12,26)(13,21)(18,34)(23,27)(24,28) 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.