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