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