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