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