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