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