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