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