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