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