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