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