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