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