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