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