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