One vertex per element, one color per generator, with an edge from x to x·s.
(2,5)(3,7)(9,10,12,14)(11,13,15,16)(17,18,21,27,22,25,23,37)(19,28,31,40,29,41,36,24)(20,32,34,26,35,44,38,42)(30,46,33,48,45,39,47,43)(1,2,4,5)(3,6,7,8)(9,11)(10,13)(12,15)(14,16)(17,19,22,29)(18,24,25,40)(20,33,35,47)(21,36,23,31)(26,43,42,48)(27,41,37,28)(30,38,45,34)(32,46,44,39)(1,3,4,7)(2,6,5,8)(11,15)(13,16)(18,25)(19,29)(26,42)(27,37)(30,45)(31,36)(32,44)(33,47)(2,5)(6,8)(17,20,23,38,22,35,21,34)(18,26,37,32,25,42,27,44)(19,30,36,47,29,45,31,33)(24,39,41,48,40,46,28,43)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.