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