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