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