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