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