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