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