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