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