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