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