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)(19,26)(20,25)(21,30)(22,24)(23,27)(28,32)(29,31)(37,45)(40,47)(43,46)(44,48) involution — undirected(2,7)(3,10)(8,14)(11,16)(17,19,23,22)(18,24,27,26)(20,28,21,29)(25,31,30,32)(33,34)(35,42)(36,39)(37,40)(38,41)(43,48)(44,46)(45,47)(1,3)(2,4)(5,11)(6,10)(7,9)(8,12)(13,16)(14,15)(17,20,23,21)(18,25,27,30)(19,28,22,29)(24,31,26,32)(33,35,38,39)(34,36,41,42)(37,43,45,46)(40,44,47,48)(1,3)(2,4)(5,11)(6,10)(7,9)(8,12)(13,16)(14,15)(17,21,23,20)(18,25,27,30)(19,29,22,28)(24,31,26,32)(33,34)(35,36)(37,40)(38,41)(39,42)(43,44)(45,47)(46,48)(1,4)(2,3)(5,12)(6,9)(7,10)(8,11)(13,15)(14,16)(17,18)(19,24)(20,25)(21,30)(22,26)(23,27)(28,31)(29,32)(33,36)(34,39)(35,41)(37,44)(38,42)(40,46)(43,47)(45,48) involution — undirected(1,5,6,13)(2,8,7,14)(3,11,10,16)(4,12,9,15)(17,22,23,19)(18,26,27,24)(20,29,21,28)(25,32,30,31)(33,37)(34,40)(35,43)(36,44)(38,45)(39,46)(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.