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