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