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