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