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