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