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