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