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