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