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