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