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