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