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