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