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