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