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