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