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