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