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