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