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