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