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