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