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