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