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