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