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