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