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