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