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