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