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