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