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