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