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