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