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