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