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