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