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