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