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