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