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