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