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