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