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