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