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