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