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