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