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