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