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