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