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