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