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