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