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