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