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