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