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