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