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)(9,23,25,30)(10,14,26,16)(12,19)(13,29,31,24)(18,27)(20,28)(22,32)(33,36)(34,35)(5,7)(6,12,15,21)(8,10)(9,18)(11,20)(13,27,31,35)(14,17,16,28)(19,26)(22,24)(23,36,30,32)(25,34)(29,33)(5,8,10,20,11,19,26,7)(6,12,14,17,15,21,16,28)(9,22,24,34,25,33,29,18)(13,27,30,32,31,35,23,36)(2,4)(5,9,10,24,11,25,26,29)(6,13,16,23,15,31,14,30)(7,18,8,22,20,34,19,33)(12,27,28,36,21,35,17,32)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.