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