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