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)(21,22,28,30,27,32,26,31)(23,33,34,25,24,29,35,36)(5,7)(6,10)(8,15)(9,14)(11,19)(12,18)(13,16)(17,20)(21,23,27,24)(22,25,32,36)(26,34,28,35)(29,30,33,31)(1,2,3,4)(5,8)(6,11)(7,13)(9,16)(10,17)(12,20)(14,15)(18,19)(21,24,27,23)(22,29,32,33)(25,30,36,31)(26,34,28,35)(8,16)(11,20)(13,15)(17,19)(21,25,28,29,27,36,26,33)(22,24,30,35,32,23,31,34)(6,12)(7,14)(11,20)(13,15)(21,26,27,28)(22,30,32,31)(23,34,24,35)(25,33,36,29)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.