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