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