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