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