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