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