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