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