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