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