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