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