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