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