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