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