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