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