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