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