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