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