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