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