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