One vertex per element, one color per generator, with an edge from x to x·s.
(2,5)(6,8)(25,26,32,35)(27,36,39,33)(28,40,30,31)(29,37,38,34)(3,7)(6,8)(9,10,14,18)(11,16,21,15)(12,13,17,23)(19,24,22,20)(25,27,32,39)(26,33,35,36)(28,37,30,34)(29,31,38,40)(1,2)(3,6)(4,5)(7,8)(9,11,14,21)(10,15,18,16)(12,19,17,22)(13,20,23,24)(25,28,32,30)(26,31,35,40)(27,37,39,34)(29,33,38,36)(9,11)(10,16)(12,22)(13,20)(14,21)(15,18)(17,19)(23,24)(25,29,32,38)(26,34,35,37)(27,31,39,40)(28,36,30,33)(1,3,4,7)(2,6,5,8)(9,12)(10,13)(11,19)(14,17)(15,20)(16,24)(18,23)(21,22)(25,30,32,28)(26,31,35,40)(27,37,39,34)(29,36,38,33)(1,2)(3,6)(4,5)(7,8)(9,13)(10,17)(11,20)(12,18)(14,23)(15,22)(16,19)(21,24)(25,31)(26,30)(27,38)(28,35)(29,39)(32,40)(33,34)(36,37) 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.