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