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