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