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