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