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