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)(21,29)(22,28)(23,25)(24,27)(26,31)(30,34)(32,33) involution — undirected(3,5,7,13)(4,8,10,11)(6,14,15,12)(9,17,18,16)(20,25)(21,30)(27,28)(31,32)(3,6,7,15)(4,9,10,18)(5,12,13,14)(8,16,11,17)(19,21,23,30)(20,26,25,33)(22,31,24,32)(27,29,28,34)(4,10)(8,11)(9,18)(16,17)(20,25)(26,33)(27,28)(29,34) involution — undirected(19,22,23,24)(20,27,25,28)(21,31,30,32)(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.