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