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