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