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