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