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