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