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