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