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