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