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