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