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