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