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