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