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