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