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