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