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