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