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