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