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