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