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