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