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