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