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