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