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