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