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