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