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