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