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