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