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