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