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