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