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