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