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