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