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