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