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