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