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