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