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