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