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