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