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)(17,18,24,28)(19,29,32,25)(20,26,21,22)(23,27,31,30)(33,34,39,42)(35,40,45,36)(37,38,41,47)(43,44,48,46)(2,7)(3,10)(9,15)(11,13)(17,19)(18,25)(20,27)(21,30)(22,31)(23,26)(24,32)(28,29)(33,35,39,45)(34,40,42,36)(37,43,41,48)(38,44,47,46)(2,7)(4,8)(9,15)(12,16)(17,20,24,21)(18,26,28,22)(19,27,32,30)(23,29,31,25)(33,36,39,40)(34,35,42,45)(37,46,41,44)(38,43,47,48)(1,3)(2,8)(4,7)(5,13)(6,10)(9,12)(11,14)(15,16)(17,21,24,20)(18,26,28,22)(19,30,32,27)(23,29,31,25)(33,37)(34,38)(35,43)(36,46)(39,41)(40,44)(42,47)(45,48)(1,4,6,8)(2,3,7,10)(5,12,14,16)(9,11,15,13)(17,22,24,26)(18,20,28,21)(19,31,32,23)(25,27,29,30)(33,36)(34,35)(37,46)(38,43)(39,40)(41,44)(42,45)(47,48)(1,5)(2,9)(3,11)(4,12)(6,14)(7,15)(8,16)(10,13)(17,23,24,31)(18,27,28,30)(19,26,32,22)(20,29,21,25)(33,38)(34,41)(35,44)(36,43)(37,42)(39,47)(40,48)(45,46)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.