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