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