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