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