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