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