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