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