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