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