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