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