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