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