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)(23,30)(24,25)(27,34)(28,33)(31,32)(35,36)(1,2)(3,4)(6,9)(10,12)(13,15,16,19)(14,17,18,20)(21,22,26,29)(23,27,32,35)(24,33,25,28)(30,34,31,36)(2,4)(21,23,25,30,26,32,24,31)(22,27,28,34,29,35,33,36)(5,7,8,11)(6,10,9,12)(14,18)(17,20)(21,24,26,25)(22,28,29,33)(23,31,32,30)(27,34,35,36)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.