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