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