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)(22,27)(23,32)(24,34)(28,31)(5,7)(6,10)(8,14)(9,15)(11,18)(12,13)(16,19)(17,20)(21,22)(23,29)(24,35)(25,27)(26,28)(30,32)(31,33)(34,36) involution — undirected(1,2,3,4)(22,28)(23,32)(26,33)(27,31)(29,36)(30,35)(5,8,9,17)(6,11,12,16)(7,14,15,20)(10,18,13,19)(21,23,25,32)(22,29,27,30)(24,33,34,26)(28,35,31,36)(7,15)(10,13)(14,20)(18,19)(21,24,25,34)(22,30,27,29)(23,33,32,26)(28,35,31,36)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.