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