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