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