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