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