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