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