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