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