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