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