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