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