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