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