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