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