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