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