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