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