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