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