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