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