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