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