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