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)(19,20,24,27)(21,28,29,34)(22,26,23,31)(25,32,33,30)(3,5)(4,8)(6,13)(7,12)(9,16)(10,11)(14,17)(15,18)(21,29)(25,33)(28,34)(30,32) involution — undirected(19,21)(20,25)(22,30)(23,32)(24,29)(26,34)(27,33)(28,31) involution — undirected(5,12)(8,11)(13,18)(16,17)(19,22,24,23)(20,26,27,31)(21,30,29,32)(25,34,33,28)(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.