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