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