One vertex per element, one color per generator, with an edge from x to x·s.
(1,2,7,5)(3,4,11,8)(6,9,14,13)(10,12,16,15)(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)(1,3,7,11)(2,8,5,4)(6,10,14,16)(9,15,13,12)(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)(6,14)(9,13)(10,16)(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)(1,4)(2,3)(5,11)(6,12)(7,8)(9,10)(13,16)(14,15)(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)(1,5,7,2)(3,8,11,4)(6,13,14,9)(10,15,16,12)(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)(1,6,7,14)(2,9,5,13)(3,10,11,16)(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.