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