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