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