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