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