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