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