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