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