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