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