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