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