One vertex per element, one color per generator, with an edge from x to x·s.
(6,12)(8,22)(9,11)(13,17)(15,16)(18,34)(19,20)(23,35)(24,25)(26,32)(27,36)(28,29) involution — undirected(1,2,3,4)(5,6,11,16,10,15,9,12)(7,17,20,29,21,28,19,13)(8,14,22,32,25,31,24,26)(18,33,34,36,35,30,23,27)(2,4)(5,7,11,19,10,21,9,20)(6,13,16,28,15,29,12,17)(8,23,22,35,25,34,24,18)(14,30,32,36,31,33,26,27)(5,8,10,25)(6,14,15,31)(7,18)(9,24,11,22)(12,26,16,32)(13,27)(17,33)(19,23)(20,34)(21,35)(28,30)(29,36)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.