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