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