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