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