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