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