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