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