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