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