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