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