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