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