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