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